Abstract: A water and inert gas fire suppression system (10), and method for extinguishing a fire in a protected space are provided with a simple and inexpensive freeze protection mechanism. To prevent the water, or other liquid fire extinguishing agent, entrained in the inert gas flow from freezing during transport through the inert gas distribution network (15, 15a, 15b, 17, 19) a secondary liquid is introduced into the inert gas flow and then removed from the inert gas flow upstream of the discharge of the two-phase water and inert gas flow into the space being protected. The inert gas is heated by means of the thermal inertia (TI) of the secondary liquid, which may be excess amount of water or an amount of another liquid having a thermal inertia (TI) at least equal to that of water.

Abstract: A system for continuously metering and transporting a powder comprises means (104-107) for fluidizing (F2) the powder in a closed reservoir (4), a tube (110) dipping into the fluidized powder (L4) and discharging (110B) to the outside of the reservoir (4), and means (S2, C2) for pressurizing the reservoir. The system further comprises supply means (C3) for continuously supplying pressurizing gas from the reservoir (4) to a chamber (V6) for mixing the gas with fluidized powder leaving the tube (110), said supply means (C3) being equipped with or constituting a constriction (R3) to the flow of the pressurizing gas. A hose (7) for transporting the powder mixed with the pressurizing gas is connected to the downstream end of the mixing chamber (V6).

Abstract: An assembly for feeding liquid to the inlet port of a liquid spraying device or spray gun. The assembly includes a stiff container that defines an opening into a cavity in the container, and a flexible liner positioned within the cavity in the container has an outer surface generally corresponding in shape to the inner surface of the container, an inner surface defining a cavity in the liner, and an annular lip along the top end of the side wall defining an opening into the cavity in the liner. An included adapter assembly has a central portion with a through opening that is adapted to engage the inlet port of a liquid spraying device, a transverse portion including a peripheral part adapted for engagement within the flexible liner adjacent said top end of the container, and means for sealing the flexible liner around the peripheral part of the adapter assembly. An air supply assembly connected to the container supplies air at a relatively low pressure (e.g., in the range of about 0.

Abstract: A dispensing system includes at least one source of pressurized air and reservoirs for multiple automobile finish products. A discrete spray gun is provided for each of the products.

Abstract: A detersive foam producer and expeller pneumatic machine characterized by a main conduit formed by two sections coupled to both mouths of a flow regulator valve, each having a corresponding smaller shunt, of which the front section shunt connects up a pneumatic pressure regulator and the shunt corresponding to the rear section is connected to a diaphragm pneumatic pump by its outlet mouth, the pump being in connection with a suction hose coming from a container of detersive solution, and the final end of main conduit connected to the ejection hose.

Abstract: A modular system for atomizing and delivering liquids to a substrate. The modular system comprises a liquid module, a means for providing an atomizing agent, a nozzle assembly and an actuator which is changeable between a first closed position and a second open position, for selectively allowing the atomizing agent to flow from the means for providing atomizing agent to the atomizing agent channel and for selectively allowing the liquid to flow from the cavity to the liquid delivery nozzle. The modular system atomizes liquids into a narrow distribution of particle sizes without the use of propellants or solvents. The modular system has replaceable liquid and atomizing agent modules. A method for atomizing liquids is also disclosed.

Abstract: A pressure controlling device of a paint container for use in conjunction with a paint spray gun is composed of a pressure stabilizing plug capable of regulating the air discharge in accordance with the magnitude of the air pressure that is admitted to the paint container. The device is further composed of an air valve piece capable of displacing to control the entry of an appropriate amount of air into the paint container so as to keep the air pressure of the paint container constant. The device is provided with an adjustment nut for adjusting the elastic force of the pressure stabilizing plug in accordance with the desired thickness of a coating.

Abstract: A dual pressure regulator device for a spray gun is supplied with an input fluid under pressure and outputs a first regulated pneumatic pressure to a pressurized tank, and a second regulated pneumatic pressure to the spray gun. The dual pressure regulator device has a unitary body having a fluid passageway extending from an inlet port at a first end of the body, to which inlet port the input fluid is supplied, to a first valve chamber in which a first regulator valve is installed, and to a second valve chamber in which a second regulator valve is installed. The pressure in the nozzle device's main pressure internal line and the head pressure within the tank are maintained within specified tolerances, independent of pressure fluctuations in the main supply line to the nozzle device. The body has an inclined body wall portion that is conformal with the handle, such that the valve assemblies are physically accommodated and accessible in a space directly beneath the handle, adjacent to the tank.

Abstract: A method for dispensing a substance including the steps of housing the substance in a container in a substantially flowable state; establishing a path in proximity to the substance for movement of the substance from the container; and applying pressure to the substance within the container to force the substance from the container and along the path. An apparatus for dispensing a flowable substance including a container having an interior adapted to receive the flowable substance; an assembly adapted operably to be connected to the container and having a first passage through which the flowable substance is to be dispensed and communicating with the interior of the container through an opening; an assembly defining a second passage communicating with the interior of the container; and a mechanism for individually pressurizing the first and second passages to cause the flowable substance to be forced from the interior of the container through the opening and into the first passage to be dispensed.

Abstract: An improved paint spray gun with a regulated pressure feed paint cup. High pressure air is supplied through a hose and a fitting to the spray gun handle. The air pressure is reduced to a low pressure high volume flow within the gun for atomizing the paint. The inlet of a pressure regulator is connected through a quick connect fitting directly to the gun handle for receiving high pressure air. The regulator outlet is connected through a flexible hose to a barbed fitting on a check valve on a paint cup lid for applying a controlled paint feed pressure to the cup. The location of the regulator does not adversely affect the maneuverability or balance of the gun during use and the regulator can be quickly disconnected from the gun to facilitate cleaning the gun.

Abstract: An electrostatic powder spray gun comprises a powder channel for a powder-air mixture to be sprayed, the powder channel extending through a pistol tube and discharging axially forward at the forward end of the gun through an annular opening which is coaxial with the longitudinal axis of the pistol tube. An auxiliary air line extends through the pistol tube and discharges at the forward end and is constructed in such a manner that the auxiliary air line discharges axially forward as an annular opening coaxial with the annular powder opening, in particular radially and slightly in front of the annular powder opening. An air deflecting member is arranged in front of the auxiliary air annular opening and is seated at the free end of a rod which extends centrally through the pistol tube and is axially displaceable therein. The rod is mechanically coupled to the trigger of the spray gun so that the air deflecting member can be adjusted from the trigger.